Cleaning compound



' 10 not age, that is,

Fatented Nov. 12, 192

J'OSE'F TALALAY AND onnnnme comrounn R Drawing.

Our invention relates to cleaning comppunds, and more particularly to compounds 0 which may be moulded or pressed into tablets, rods or the like and are particularly suitable for cleaning hard objects such as steel stamps, type writing machines, etc., and it is an object of our invention to provide a compound of the kind described which does does not lose its plasticity and dirt-absorbing qualities in time. To this end, "we mix with the compound substances which are suitable for maintaining it in its plastic condition, and substances rich in resin, and so obtain a compound of practicallli unlimited life.

eretofore, objects of the kind referred to were either cleaned with petrol applied by a brush, or with a pasty substance. The former method is tedious and dirty, and the pastes as heretofore made involved the drawbacks of .rapid aging so that they had to be used within a short period from their manufacture as else they would lose their plasticity and their dirt-absorbing qualities,- the latter due to volatilization of their resinous constituents. These drawbacks are overcome in accordance with our invention by admixing to said compounds either mineral oils or non-drying or semi-drying-vegetable oils such as rapeseed oil, and rubber varieties rich in resin, such as guayule, agra flakes, ficus, etc., the other constituents of the compound being, for instance, factice, brown or white, chalk, heavy spar (sulfate of barium), lithopone, lime, infusorial earth, a colouring agent (ultramarine blue, cobalt blue, soot black, 40 iron oxide, typoforod, cinnabar), powdered marble, zinc white, .kaolin, and combinations thereof.

The resin contained in the rubber can be.

partly or completely substituted by gut-ta percha'resin, dead borneo (a resinous crude rubber) etc., and suitable regenerates may be usedinstead of rubber.

Preferably, the oil is heated, the resinous rubber is'dissolved in the oil so as to prevent 150" hardening of the resin at alater period, thus WILHELM nonznnno, or BERLIN, GER? .1 FELIX rrnrrn-n, on NEW norm, is. Y.

a comparatively consistent character nssrenons 'ro Application. filed August 18, 1925. Serial No. 51,044.

increasing the life of the compound and its dirt-absorbing qualities.

The percentage of the constituents mayv vary. The compositions of four suitable compounds are given below in percentages by weight:

' Percentage Substance by weight Rubber (rich in resin) 12. 65 Brown factice -1 12. 9 Chalk 23. 6 Heavy spar 18. 5 Kaolin 3.

Powdered marble 2. 1 Lithop0ne 13. 9 Lime 1. 45 Ultramarine blue 85 Mineral. oil 7 05 N o. I I I Percentage Substance byweight Rubber (15 per cent resin) 9. 43 Regenerate, clear 25. 16 Factice, brown 6.29 Factice, light 6. 29 Lithopone '25. 16 Heavy spar 18. 87 Mineral oil 7. 86 Ultramarine blue 94:

N 0. III- Percentage Substance by weight Rubber II (5 per cent resin) 9. 43 Factice, brown 12. 58 Lithopone 25.116 Heavy spar 18. 87 Mineral oil or rape seed oil 7 86 Ultramarine blue or iron oxide 91 .Powdered marble .4 22. Resin, dead borneo or gutta percha.-- 3. 16

' colour which differs Percentage 1V 0. IV Substance by weight Rubber II 10 Guayule 16 Factice, brown 28 Factice, white l0 Mineral oil 1 Zinc white 6 Kaolin; 8 eavy spar 6 Chalk 4: Precipitated silica 4 Lithopone 6 Ultra-marine blue 1 Factice brown consists of plant oils that are mixed with sulphur and boiled and admixtures of mineral oil and fillers such as chalk, feldspar and the like can likewise be made.

Factice light also consists of plant oils, chiefly rapeseed oil, mixed with carbon disulphide (28%) or with sulphur chloride. The brown factice is produced from the plant oils, such as linseed, rapeseed, castor and the like by treatment With heat whereas in forminlgdwhite factice the oils are treated while co Regenerate' clear is regenerated rubber that, when ground up, is' freed from freesulphur.

The mineral oil used has the ordinary propeorties, and an average boiling point of 350 The constituents are mixed and kneaded into a plastic sticky consistence, and the compound may then be moulded into tablets or sticks. When such a stick or the like is moved along the parts to be cleaned under pressure, the dirt adheres to the stick and the parts become bright or clean instantly. The stick may be used repeatedly, being simply remoulded after having been used.

Any colouring agent may be added to the compound. Its colour may be the same as that of the dirt to be removed or some other widely from that of the dirt.- In the latter case, the colour of the stick indicates its condition, as its original colour will gradually be efiaced by that of the dirt.

We claim:

1. A compositionof matter forcleaning type, containing a base of powdered inert mineral substance, plastic rubber, factice,'a heavy mineral filler, and a mineral oil.

2. A type cleaner comprising a plastic cake formed of a mechanical mixture of powdered calcium carbonate, plastic rubber, factice, a heavy mineral filler, and a mineral oil.

3. A type cleaner comprising a plastic cake formed of a mechanical mixture of powdered calcium carbonate, plastic rubber, factice, a

' substantially 12% calcium carbonate, plastic rubber containing resin, factice, mineral oil.

5. A type cleaner comprising a plastic cake formed of a mechanical mixture of powdered calcium carbonate, plastic rubber containin resin, factice, a heavy mineral filler, lithopone, and a mineral oil.-

6. A type cleaner comprising a plastic cake containing between 9% and 13% rubber, containing at least 5% of its weight of resin; of factice; substantially 18% heavy spar; and substantially 7% mineral oil and over 13% of lithopone.

7 A type cleaner comprising a plastic cake containing a base of calcium carbonate at a heavy mineral filler, and a least 22% between 9% and 13% rubber, containing at least 5% of its Weight of resin; substantially 15% of factice; substantially 18% heavy spar; and substantially 7% mineral oil and over 13% of lithopone.

In testimony whereof, we have signed our names to this s ecification.

J SEF TALALAY. WILHELM -HOLZ1ERG. 

